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Old 02-21-2007, 10:38 PM   #1
Forrest
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Default Storing Crushed Grains

What is the best way to store crushed grains and how long can I expect them to last?

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Old 02-21-2007, 10:45 PM   #2
Lord Sterrock Hammerson 8
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Found this in a link.

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Malted barley should be protected from moisture and stored at temperatures between 50¡ and 70¡ F. Any quantity of malted barley, whether its a 50-pound sack of two-row or a one-pound bag of crystal, should be stored in containers that keep the grains airtight and dry. And the container should be able to keep bugs out.

Plastic bags you can seal (like a Ziploc) or rigid plastic 2- to 3-gallon containers with a sealing lid (like a trash can) are ideal for long-term storage. Uncrushed grain will store for a year in these conditions, and crushed grains will be good for two to three months. Big bags of grain usually come with a plastic lining inside.
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I have been considering going to all-grain brewing. I have heard that it is sometimes better to buy malt in 50-pound increments to save money on grain. However, I do not plan to brew with more than 10 pounds at a time. How should I store the extra crushed grains? Can crushed grains be stored in the freezer, or should I just leave the grain in its paper sack at room temperature?

Mr. Wizard replies: The key to storing grain is keeping it dry. Whenever crushed grain is left to sit around, it begins to take up moisture from the air. Most malts have a moisture content between 4 percent and 6 percent, and there are very few climates in the world that do not cause malt to absorb water over time. My rule with crushed malt is to use it as soon as possible, which means don’t mill your malt until brew day. This, of course, requires a mill.

If you buy pre-crushed grain and want to store it for some time, you have a few options. One option is to measure the grain into convenient quantities, such as five- or 10-pound lots, and bag it in sealable plastic bags. You can use a fancy vacuum packer, but large freezer bags will do the trick, too. You also can store malt in a sealable container like one used for flour.

Some malts are even sold in woven nylon bags that have plastic liners. These bags work pretty well for extended storage if you roll up the open part of the bag and secure it to reseal the bag.

Malt can be stored at room temperature for extended periods without harm. As long as it stays dry and free of bugs, malt will keep for about a year — although like anything else it will lose its fresh flavor the longer you keep it. Because malt does contain a small amount of oil, it can go rancid if left unused for too long. Rancidity is more likely to occur if the malt is stored in a very hot environment.

I would not recommend storing malt in the freezer, mainly because it is not necessary. The other problem with freezers is their amazing ability to make things taste like they were stored in a freezer! I can’t imagine a beer that ended up tasting like a freezer, but I would guess that it wouldn’t be all that great.
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Old 02-22-2007, 01:03 AM   #3
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Thank you very much

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Old 05-13-2011, 01:44 AM   #4
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Thanks for that link! It was useful to me even 4 years later :P

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